Please use this identifier to cite or link to this item: https://gnanaganga.inflibnet.ac.in:8443/jspui/handle/123456789/16648
Title: Ultra Strong Flexible Ba0.7Sr0.3Zr0.02Ti0.98O3/Mwcnt/Pvdf Nanocomposites: Pioneering Material With Remarkable Energy Storage for Self-Powered Devices
Authors: Mukherjee, Anindita
Ghosh, Barnali Dasgupta
Roy, Sunanda
Goh, Kheng Lim
Keywords: Polymer Composite
Dielectric Properties
Piezoelectric Material
Interfacial Interaction
Wearables
Nanogenerator
Issue Date: 2024
Publisher: Chemical Engineering Journal
Elsevier Science Sa
Citation: Vol. 488
Abstract: Recently, polymer composite-based capacitors have gained an overwhelming interest in advanced power systems due to their lightweight, flexible nature, high dielectric permittivity, strong thermal stability, and good energy storage density. However, the energy storage capacity remains insufficient for practical applications. This paper reports a robust PVDF/Ba0.7Sr0.3Zr0.02Ti0.98O3 (f-BSZT)/f1-MWCNTs nanocomposite with high energy storage density, energy storage efficiency (7), stable dielectric permittivity (e) and piezoelectric response using a simple solution casting process. The composite was designed in such a way it holds a 204 % increment (14 J/cm3) in energy storage density compared to the pristine PVDF (4.6 J/cm3). The energy storage efficiency (7) was measured at 89.6 % at a breakdown strength of 2000 kV/cm and a stable dielectric permittivity (e) of approximately 41.5 at 100 Hz. When evaluating the composite's strength, an incredible increase in tensile strength (144%) and Youngs's Modulus (71.3%) was achieved. This remarkable property enhancement is attributed to superb filler dispersion and filler-matrix interfacial bonding achieved through selective surface functionalization of the fillers. Upon fabricating a nanogenerator with this nanocomposite, the device exhibited an electrical output of 25.7 V and 1.86 mu A, surpassing many contemporary results. The device also showed outstanding sensitivity and performance under various biomechanical forces, making it a promising futuristic material for self-powered energy harvesting devices.
URI: http://dx.doi.org/10.1016/j.cej.2024.151014
https://gnanaganga.inflibnet.ac.in:8443/jspui/handle/123456789/16648
ISSN: 1385-8947
1873-3212
Appears in Collections:Journal Articles

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